Josef wolf



2 SheetsSheet 1. J. WOLF.

SPRING HINGE.

(No Model.)

7 Patented Oct. 25, 1892.

WITNESSES:

J 08 ef ,oZf, mfimf ATT'Y.

2 Sheets-Sheet 2.

(No Model.)

J. WOLF.

SPRING HINGE.

Patented 001;. 25, 1892.

i 9 a w WITNESS-ES INVENTOFI:

WZE J03 e1" ,ozf, i f BY A ,ATTY.

UNITED STATES PATENT OFFICE.

J OSEF WOLF, OF NEWARK, NEWV JERSEY, ASSIGNOR TO ALBERT V. WVIDMANN AND JOHN OOPPERSMITH, OF SAME PLACE.

SPRING-HINGE.

SPECIFICATION forming part of Letters Patent No. 484,839, dated October 25, 1892.

Application filed February 20, 1892. Serial No. (N0 "W To all whom it may concern.-

. Be it known that I, JOSEF WOLF, a citizen of the United States, residing at Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Spring-Hinges; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters and figures of reference marked thereon, which form apart of this specification.

The present invention relates to improvements in spring-hinges for removably hanging doors, shutters, &c., which also act as a holdback for reliably holding open the door or shutter in difierent positions, and which also serves as a means for automatically closing the same when but partially opened.

The invention therefore consists in certain arrangements and combinations of parts, such as will be hereinafter more fully described, and finally embodied in the clauses of the claim.

In the different views of the drawings, herewith accompanying,in which similar reference letters and figures are employed to i ndicate corresponding parts in each of the several views, Figure 1 is a front elevation of myimproved spring-hinge. Fig. 2 is a side view of my improved spring-hinge; and Fig. 3 is a horizontal section of the same, taken on line 00 in Fig. 1. Fig. 4 is a view similar to Fig. 2, showing the hinge-leaves in an open relation to each other. Fig. 5 is a similar View illustrating the position of oneof the highest curved portions between the scallops on the ears of one hingeleaf in engagement with the curved surface of said stop on the cam-plate. Fig. 6 is a View of the under side of the hinge-leaf provided with the cylinder to more clearly illustrate the arrangement and construction of the spring-actuated piston-rod and the manner of inserting a nail or pin in the perforation in said rod. Fig. 7 is an edge View of the cam-plate provided with stops for engagement wit-h the scalloped edges on the ears of the one hinge-leaf. Fig. 8 is a top View of a modified form of hinge embodying the same principle. Fig. 9 is an end view of the same; and Fig. 10, a horizontal section taken through the one hinge-leaf and the cylinder on the other hinge-leaf, the cam-platein this instance being represented in plan view. Fig. 11 is a side view of the hinge-leaf provided with the piston, looking in the direction of arrow y in Fig. 9.

In the views, a and a indicate the two leaves of the spring-hinge, each leaf being provided with the usual perforations for the insertion of screws for securing them to the door or shutter and the frame. Thehinge-leaf a is provided with the usual gear a and the pintle a while the opposite hinge-leaf ctis provided with one or two ears a, provided with a series of scallops and inwardly-curved portions a and the connecting raised portions a. Said ears are provided with a central hole ed, by means of which the two leaves can be pivotally arranged upon the door or shutter and the frame, and whereby the hinge-leaves and their operating mechanism can be separated and the dooror shutter removably hung in its frame. The hinge-leaf a, which may be left open at the back, as shown in Figs. 8 and 6, has

formed thereon a cylinder a provided at its forward end with a slotted portion a and closed at the back, as at a and preferably provided with a perforation a, above which may be arrangcda shoulder a. Within said cylinder I have arranged a piston-rod I), having a threaded end I), which may be made to extend through the perforation a in the end a of the cylinder. Upon said threaded end I secure a piston or disk 6 and arranged between said disk and the slotted end a of the cylinder is a coiled spring 0 of the proper tension, which encircles the rod I). Said rod 5 may be provided with a hole or perforation b and the rod is bent backwardly, as at b, and is provided with an upwardly-projecting end or finger b Upon said finger I have arranged a cam-plate (Z by means of the hole (1, which is placed over the finger b on the rod I). Said plate 01 has an enlarged portion (1 provided with an elliptical opening or slot (1 which is arranged between the ears 0. on the leaf a in such a manner that said cam-plate is capable of a reciprocating movement between said ears and about the piritle a Said cam-plate is also provided with a forwardlyextending portion (1 having on opposite sides thereof stop-pieces (1 each of which is provided with a curved surface d", which corresponds to the curvature of the scallops a on the cars a of the hinge-leaf a.

Having thus described the construction and arrangement of the several parts of this form of hinge, I will now describe its manner of operation: When the two leaves of the hinge have been secured to the door or shutter and to the frame and when said door or shutter is hung within its frame, the several parts of the hinge and its operating mechanism assume the positions illustrated in Figs. 1, 2, and 3. The hinge-leaf a may be attached to the frame and the leaf a to the door or shutter, or vice versa. When in the position illustrated in Figs. 1, 2, and 3, the spring is at rest; but as soon as the door or shutter is opened the raised portions a between the scallops a at 1 and 2 (see Fig. 2) will pass along the curved surfaces d on the stoppieces (1, arranged on the cam-plate d, which cam-plate swings on the finger b on the rod 12 and moves about the pintle a as will be evident from Fig. 2, until one of the scallops a either at 2 or 3, is caused to engage with said curved surface d, as clearly illustrated in Fig. 4, and the shutter or door is thus held in its open position until it is again forced back, causing the curved corners or raised portions a to pass over the curvedsurfaces (1 until the parts again assume the positions indicated in Fig. 2 and the shutter or door will be firmly closed. It will be evident that the stop-pieces d on the cam-plate and the scallops a on the ears 0. may be made smaller, and any suitable number of such scallops may be employed, whereby the door or shutter can'be held open at different angles to its frame. This is of the greatest advantage for shutters intended for use on window-frames arranged side by side, as on bay-windows, where it has not been practical to use outside shutters for the reason that the shutters on two adjacent windows could not be retained in their open positions. By my improved form of hinge I have overcome this difficulty, and another great advantage is that the shutter can be opened and held at certain angles to shut out the sunlight and still admit fresh air.

' When it is desired to separate the several parts of the hinge, the shutter or door is rotated to such a position that the raised portion a is caused to stop upon the curved surface cl of the stop-piece (1 as clearly indicated in Fig. 5, which causes the perforation b in the rod 1) to extend beyond the slotted portion a of the cylinder, and a pin or nail e can then be inserted in said perforation, and by turning the shutter or door back the spring on the rod b will cause said pin or nail e to be drawn against the side a of the cylinder, as will be seen from Fig. 6, and the door orshutter can then be'lifted from its frame with case and without disturbing the operating mechanism in any manner.

In lieu of the construction illustrated in Figs. 1, 2, and 3, et seq.,the hinge-leaves may be of that form of construction illustrated in Figs. 8, 9, 10, and 11. i In these constructions the cylinder on one binge-leaf is open at one side, as at f, and open at theback, as at f, and

the cylinder is also provided with a slotted portion f The piston-rod in this case, as will be seen from Fig. 10, is formed with a back plate g, having a nut g projecting along said slotted portion f of the cylinder, and a side g arranged between the two sides f and f of the cylinder, as will be evident from Figs.

9 and 11.

The cam-plate and the other hinge-leaf provided with the scalloped cars is very sim lar to the construction described in connect on with Figs. 1, 2, and 3. In this' construction when the shutter or door is opened the piston-rod causes the end gof the side g which virtually forms part of the cylinder, to move within the slot f and between the sides f and f, as will be clearly understood from Fig. 10, and when the door or shutter is closed the tension of the spring causes the normal return of said parts. The action of the stop-pieces d on the cam-plate is similar to that described in the above, and therefore needs no further description. It will thus be' seen that various modifications of the details may be made without departing from the scope of my present invention, the essence of my invention consisting in arranging scalloped ears on the one hinge-leaf, in combination with a carnplate having stops and aspring-actuated piston-rod for operating the same.

Having thus described my invention, what 1 I claim is- 1. In a spring-hinge, the leaf a, provided with a cylinder having a spring-actuated rod projecting therefrom and provided witlia finger and an upwardly-projecting pintle, acamplate pivoted on the finger of said springactuated rod, provided with an elongated opening embracing said pintle, and a stop d on said cam-plate, in combination with a leaf at, having a perforated ear provided with a scalloped edge with which said stop (1 engages, substantially as and for the purposes set forth.

2. In aspring-hinge, in combination, a leaf a, provided with a cylinder and a springactuated rod therein, a leaf a, provided with a perforated ear having scallops, means for pivotallyconnecting said hinge leaves, a cam plate connected with said spring-actuated rod, and. a stop (i thereon adapted to engage with said scallops, substantially as and for the purposes set forth.

3. The herein-described spring-hinge,con1- prising therein a leaf a, having a cylinder, a spring-actuated rod in said cylinder, provided on its end with a finger, a leaf or, having ears provided with scallops, an upwardly-projecting pintle on said leaf a, to which said leaf a is hinged, and a cam-plate d, pivotally arranged on said spring-actuated rod, provided with an elongated opening embracing the pintle, and stop-pieces (Z on said cam-plate adapted to engage with said scallops, substantially as and for the purposes set forth.

In testimony that I claim the invention set forth above I have hereunto set my hand this 17th day of February, 1892.

J OSEF WOLF.

Witnesses:

FREDK. O. FRAENTZEL, WM. H. GAMFIELD, J r. 

